Modding Is it ok changing LED'S in logitech optical mouse

Hiya everyone,

i was just wondering how the optical mouses work, are they special LED's in them that track the movment or are they just standard LED's casue i have just seen a post where someone replaced it. But i just aint too sure on doing it. Any help plz

 

do it v-e-r-y carefully and don't do anything you can't put back, and you'll be alright.

 

i dont personally know, but everyone here seems to be very serious about warning people to use only very bright led's for this mod.

 

Go for it I have done it and it worked just fine for me, at least it did when I used a bright enough L.E.D.

 

F00ck red leds, bl00 = teh pwnage



Guts.



Hmmmmmmmmmmmmmmm Bl0000000 LED's

 

Well i have done it and it worked fine for me, apart form i put the LED in the wrong way round, so i say go for it mate mine looks well cool

 

coolio and good job at replacing the LED's i am just gona go for it and hope it works, if not then . but if it dose ill have a party .

ne way thanks for the help guys. peace

 

Just use bright leds, I used 3000mcd. And put them in the right way, CNAP Cathode Negative Anode Positive.

 

So, you CAN use blue leds? That would rock, although I'd suggest using a cheap older mouse for this, as you wouldn't want to screw up a nice MX700 or w/e those awesome wireless ones are

 

Of course you can use bloo leds look up a few posts, also you wouldn't want to use a wireless mouse cause those new ultra high power L.E.D.s would drain power like a bitch.

 

Keep in mind the they use red for a reason...It can sence eny surface/texture. Blue, not so much, they only work on flat sutfaces that are a shade of blue/purple or white-light gray.

BLUE LEDS DO NOT WORK ON ALL SURFACES, ON RED/YELLOW/ORANGE OR GRAY-BLACK THE MOUSE WILL NOT TRACK

 

I modded my old optical mouse (intellimouse 5.0) The most important thing when rewiring the leds is the mcd and the angle. I replaced the original with red's blue's, greens between 3000-6000mcd. Also another note, I dont have a multimeter but the mouse only supplies I believe around 2.8 or 3 v so IF you led is rated for 5 v it probably would be too dim. (most blue's are a higher mcd)

The reason they use Red is because they are the cheapest for hi mcd, IIRC the camera is black and white, like the closed circut cams in gas stations, those can pick up Ir light pretty well and of Red blue and green REd is the closest to IR light (infact don't most red led's leak a bit into the infared light?)

To sum it up
yes its doable,
check the v of the mouse and the replacement led
check the mcd it should be over 3000
If done correctly the mouse will work on most any surface the original worked on
the tracking will be the same

 

That is not true, they work just as well as a red led on any surface except for black. Infact they would in theory work better on a red surface then a red led as then the contrast would go down. I use a fake mica desk as my mousing surface and all the colors worked fine.

 

I replaced the reds in my Logitech optical with blue LEDs. You need to be carefull because the contact pads on the PCB where you solder the LED into can pull off the PCB VERY EASILY. I had to do a little makeshift wiring cuz I had accidentally pulled off the contact pad when I was pulling the old LED out. And like it was said before, make sure you get the polarization on the LED right the first time.
Also, to make it brighter, I soldered another blue LED in parallel with the first LED and placed it just above the plastic holder for the main LED.

And I've had absolutely no problems with skipping or anything.

 

I have seen the blue mod done many times, I my self have done it twice and I have never seen a blue LED mouse work on the colours I mentioned before.
I was pissed off the first time I did this to my mouse becuse of that, so I tried 6 different leds all at different brightnesses.

 

If you have problems with dimming, USB carries 5V so simply connect it in series with a resistor to the Red and Black lines connecting to the board on the mouse. But be careful if you intent to solder your new led to these pins on the board. You need to keep that little white plastic connector on because otherwise the pins WILL shift or fall out…and then you have a problem because they tend take the traces with them. ( I lost 2 Logitech mice that way) But that will solve the brightness problem…and allows you do add additional lighting inside the mouse

 

U are wrong! its not because its the cheapest.

Look @ the sheet, its the best colour for the sensor to work with, appart from IR.


Colors:
Bl00: 470nm
Green: 520-565nm
Yellow: 588-590nm
Orange: 605nm
Red-Orange: 611-615nm
Red: 626-660nm
Infra-Red: 880 - 950nm

 

I've moded my MX500 with a 2200mcd blue (470nm) led and have excellent response on any surface I have used it on. Including the colors mentioned that won't work. This mod isn't difficult and looks great. Especially on my clear Everglide. Now I just need to cut a channel in the EG and mod it like Macroman did.

 

Later on I mentioned the issue of the light wavelength and such, Trullly tho you'll see no difference on normal mousing surfaces, as long as the contrast is good. may I ask where you got that graph from

 

hehe hiya everyone,

wow alot of people have information regarding the mod. It looks like bloo LED's work diffrent in diffrent mice, this is anoying for some people, but what i am gan do is just go for it, but keep the led i remove from my mouse. My mouse runs of batteries will the loverley bloo LED use more power than the red LED. casue if it dose i will lol

ne way thankyou to you all for posting, and that graph is helpfull. thankyou